METHOD FOR PROVIDING VIBRATION RESISTANCE OF PENDULUM ACCELEROMETER OF LINEAR ACCELERATIONS WITH DIGITAL FEEDBACK AND VIBRATION PENDULUM ACCELEROMETER Russian patent published in 2017 - IPC G01P15/00 

FIELD: measurement equipment.

SUBSTANCE: provide change of transfer factor of regulator in microcontroller from Kreg to Kregmax as per the law, where at each step of discretization voltage U is measured at input of the analogue-digital convertor of the amplifier, and and compared with threshold value Uthres; at voltages lower or equal to Uthres, for pulse-width modulator arranged inside the microcontroller a digital input signal for pulse-width modulator is generated inside the microcontroller for current value of voltage U at transfer factor Kreg; pulse-width modulator generates pulse trains of constant amplitude and of certain length; discretization step, where U is higher than Uthres, is defined in the microcontroller, and at further steps of discretization an increased signal U*incr is generated for increased transfer factor, which provides pulses lengths to a certain value "incr"; corresponding length of open state is provided, as defined by value "incr" of current switch of power amplifier, which provides supply of current pulses of stabilized amplitude and increased length from output of power amplifier to winding of the accelerometer torque meter; discretization step, where U is lower or equal to Uthres at output of analogue-digital convertor, is defined, and then the feedback system is returned to the operating mode with transfer factor equal to Kreg.

EFFECT: provision of special vibration resistance of pendulum accelerometers with digital feedback under effect of linear accelerations and vibrations of any nature and amplitude, the value of which has not been predicted at the stage of designing of the device.

2 cl, 6 dwg